256420220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{59083}}^1$

素因数の和:59130

約数の個数: 48

約数和(自身を含む): 635271168

約数和(自身を除く): 378850948

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 59083, 118166, 236332, 295415, 413581, 590830, 827162, 1181660, 1654324, 1831573, 2067905, 3663146, 4135810, 7326292, 8271620, 9157865, 12821011, 18315730, 25642022, 36631460, 51284044, 64105055, 128210110, 256420220]

約数ペア:

[(1, 256420220), (2, 128210110), (4, 64105055), (5, 51284044), (7, 36631460), (10, 25642022), (14, 18315730), (20, 12821011), (28, 9157865), (31, 8271620), (35, 7326292), (62, 4135810), (70, 3663146), (124, 2067905), (140, 1831573), (155, 1654324), (217, 1181660), (310, 827162), (434, 590830), (620, 413581), (868, 295415), (1085, 236332), (2170, 118166), (4340, 59083)]